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Question: question 2 the 3d state of stress is given by...

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Question 2 The 3-D state of stress is given by: 60 10 -80 o1-10 50 20 MPa -80 20 30 Calculate: a) the total stress (magnitude and direction with x, y, z axes) on a plane described by direction cosines: 1-0.5, m- 0,n-0.5. b) the magnitude of normal and shear stresses on this plane. c) principal stresses and direction cosines of the principal planes. d) maximum shear stress.

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